KR102099293B1 - 오디오 인코더 및 오디오 신호를 인코딩하는 방법 - Google Patents

오디오 인코더 및 오디오 신호를 인코딩하는 방법 Download PDF

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KR102099293B1
KR102099293B1 KR1020177031466A KR20177031466A KR102099293B1 KR 102099293 B1 KR102099293 B1 KR 102099293B1 KR 1020177031466 A KR1020177031466 A KR 1020177031466A KR 20177031466 A KR20177031466 A KR 20177031466A KR 102099293 B1 KR102099293 B1 KR 102099293B1
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South Korea
Prior art keywords
audio encoder
noise
signal
codebook
speech signal
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KR1020177031466A
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Korean (ko)
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KR20170132854A (ko
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톰 벡스트롬
엠마 조키넨
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프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베.
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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • G10L21/0205—
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L21/0232—Processing in the frequency domain
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
    • G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L2019/0001—Codebooks
    • G10L2019/0011—Long term prediction filters, i.e. pitch estimation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L2019/0001—Codebooks
    • G10L2019/0016—Codebook for LPC parameters

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
KR1020177031466A 2015-04-09 2016-04-06 오디오 인코더 및 오디오 신호를 인코딩하는 방법 KR102099293B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP15163055.5A EP3079151A1 (en) 2015-04-09 2015-04-09 Audio encoder and method for encoding an audio signal
EP15163055.5 2015-04-09
PCT/EP2016/057514 WO2016162375A1 (en) 2015-04-09 2016-04-06 Audio encoder and method for encoding an audio signal

Publications (2)

Publication Number Publication Date
KR20170132854A KR20170132854A (ko) 2017-12-04
KR102099293B1 true KR102099293B1 (ko) 2020-05-18

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US (1) US10672411B2 (es)
EP (2) EP3079151A1 (es)
JP (1) JP6626123B2 (es)
KR (1) KR102099293B1 (es)
CN (1) CN107710324B (es)
BR (1) BR112017021424B1 (es)
CA (1) CA2983813C (es)
ES (1) ES2741009T3 (es)
MX (1) MX366304B (es)
RU (1) RU2707144C2 (es)
WO (1) WO2016162375A1 (es)

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EP3324407A1 (en) * 2016-11-17 2018-05-23 Fraunhofer Gesellschaft zur Förderung der Angewand Apparatus and method for decomposing an audio signal using a ratio as a separation characteristic
EP3324406A1 (en) 2016-11-17 2018-05-23 Fraunhofer Gesellschaft zur Förderung der Angewand Apparatus and method for decomposing an audio signal using a variable threshold
CN111583903B (zh) * 2020-04-28 2021-11-05 北京字节跳动网络技术有限公司 语音合成方法、声码器训练方法、装置、介质及电子设备

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Publication number Publication date
JP6626123B2 (ja) 2019-12-25
KR20170132854A (ko) 2017-12-04
EP3281197B1 (en) 2019-05-15
CA2983813A1 (en) 2016-10-13
US10672411B2 (en) 2020-06-02
CA2983813C (en) 2021-12-28
JP2018511086A (ja) 2018-04-19
EP3079151A1 (en) 2016-10-12
MX366304B (es) 2019-07-04
MX2017012804A (es) 2018-01-30
BR112017021424A2 (pt) 2018-07-03
RU2017135436A (ru) 2019-04-08
RU2017135436A3 (es) 2019-04-08
CN107710324B (zh) 2021-12-03
EP3281197A1 (en) 2018-02-14
US20180033444A1 (en) 2018-02-01
RU2707144C2 (ru) 2019-11-22
BR112017021424B1 (pt) 2024-01-09
CN107710324A (zh) 2018-02-16
WO2016162375A1 (en) 2016-10-13
ES2741009T3 (es) 2020-02-07

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